Feed-water heater.



N0.73o,938. PATENTED JUNE'1s,19os.`

P. W. LUBDKB.

FEED WATER HEATER. APPLIOATIN HLBD IAN. a, 190s.

UNITED STATES n Patented Juney 16, 1903. PATENT OFFICE.

FREDERICK w. LUEDKE, oF PHILADELPHIA, PENNSYLVANIA.

FEED-WATER HEATER.

SPECIFICATON forming part of Letters Patent No. 730,938, dated J' une 16, 1903.

Application filed January 9, 1903.

To all whom, it may con/corri,.-v

Beit known that I, FREDERICK WILLIAM LUEDKE, a subject of the Emperor of Germany, residing at Philadelphia, county of Philadelphia, State of Pennsylvania, have invented certain new and useful'lmprovements in Feed -Water-Heaters, of which-the following is a specification.

My invention relates to open feed-water heaters.

The object of my invention is the provision of a novel and improved feed-Water heater ot' simple and durable construction, which will utilize the steam to the best advantage to ob-` tain the greatest heating effect and prevent carrying off the feed-Water by the exhausting steam, as also to provide for the rapid and easy removal of the water-trays, either individually or collectively, for cleaning or other purposes.

A further'object is to obviate the necessity for spraying the water and to provide a feedwater heater in which the water will be Howing while subjected to the direct impinging action ot' the steam.

Having these and other not specifically-v from the trays after being heated. The upper part of the shell has a steam-inlet 3 and steam-outlet 4 and is providedmwith a removable cover 5 and hinged doors 6 and 7 at opposite sides thereof. The doors 6 and '7 are each provided on their interior faces with a series of parallel downwardly-inclined water conductors or chutes 8, arranged at descending levels, the respective chutes on the respective doors being disposed in alineme'nt transversely of the heater and inclining the same on one door as on the other and are by preference cast integral with the doors, but may be made separately, if desired.

The chutes are provided at their lower ends with discharge-mouths 9, turned inwardly toward the center of the heater. Within the lpipe l5.

Serial No. 138,387. (No model.)v

heater-shell is a frame composed of two upright rectangular frames l0 and 1l, having the two sets ot lugs or pins 12 and 13, and these frames are sui-mounted by the pau 14, which receives the water from the supply- The frames l0 and 1l are removably positioned in the shell and adapted for easy withdrawal with the trays carried thereby through the top of the heater on removing the cover and swinging open the doors.

A series of trays l" is suspended between the frames lO and 1l in parallel arrangement at descending levels and inclined oppositely to the chutes by the employment of projecv tions 17 and 18 at theupper and lower ends of the trays, said projections resting on the lugs 12 and 13 and removably positioning the trays so they can be removed from the frames individually and taken out through either door of the heater when desired.

The frames are provided with notches 19 to permit the ready removal of th'e trays. The trays are nearly as broad as the space between the chutes of one door and lthose of the other door and at their upper ends are provided with a weir 2O to catch the Water issuing from the delivery-.mouths of the chutes, while at their lower ends they have a ledge 2l and lateral mouths V22 and 23 to deliver the waterlaterally to the chutes immediately beneath. The trays have steps orpockets 24, formed by lateral ridges 25, extending from side to side ofV the tray and terminating at the raised side ledges 26 of the tray. The construction of the trays causes a pocketing or detaining of the water as it ows from the Weir to the bottom of the tray, and thus insures complete utilization of the heating effeet of the steam, while the inclined disposition of the trays and their facing the steaminlet gives a direct heating effect equally on the water flowing down all of the trays. The construction and arrangement of the trays and chutes and flowing of the water thereover also prevent the water from being carried off by the steam as it passes from the heater.

VThe water being fed into the pan 14 passes therefrom via pipes 14 -and 14 into the weir of the uppermost tray and into the uppermost chutes of the two series. From the lower end of the uppermost tray the water flows IOO into the two chutes immediately therebelow, thence over the third tray from the top,A

chutes, and finally over the lowermost tray and into the hot-Water chamber. During the passage of the water down the chutes and trays it is subjected to the impinging action of the steam.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. In a feed-water'heater, the combination with inclined trays for the passage of the water, of means arranged fordelivering Steam directly toward and onto the inclined faces of all of the trays.

2. In a feed-water heater, the combination with inclined trays for the passage of the water located one above the other and arranged for the steam to impinge thereon, of means for delivering steam laterally directly toward and onto the inclined faces of all of the trays.

3. In a feed-water heater, the combination with inclined trays for the passage of. the

water, of means arranged for delivering steam directly toward and onto the water flowing over all the trays. v

4. In a feed-water heater, the combination 5. In a feed-Water heatenthe combination with inclined Watertrays arranged to receive the impinging action of the steam, of waterconveying chutes for conducting the water from tray to tray, and means arranged for' delivering` steam directly on the water flowing over all the trays and also directly against all the chutes.

6. In a feed-Water heater, the combination with inclined Water-conveying trays arranged to receive the impinging action of the steam, and chutes inclined reversely to the trays and adapted for conducting the Water from tray to tray and also arranged to receive the impinging action of the steam, of means arranged for delivering steam directly on the y Water flow-ing over all the trays and also directly against all the chutes.

7. In a feed-Water heater, the combination with a steam-supplied heater-shell and a door therefor, of Water-conductors 'carried by the door, and water-trays in the shell, said waterconductors and water-trays being arranged when the door is closed to deliver the Water to each other.

8. In a feed-Water heater, the combination with a steam-supplied heater-shell, of watertrays in the shell, doors for the shell and at opposite sides of the water-trays, and waterconductors carried by the doors, said Waterconductors and water-trays being arranged when the doors are closed,to deliver the water to each other.

In testimony whereof I hereunto affix my signature in presence of two witnesses.

FRED. NV. LUEDKE.

, lVitnesses:

SALLIE R. CAMAC, J. WfCAMAc. 

